Please kindly help me to correct the usage in the sentence below.

1. Teacher: Can you explain to me when you _learn____ the Past Simple & the Present Perfect?
Learn
Utilise
Use
Adapt
2. Student: I think the Past Simple is for a ___definite__ time in the past and the Present Perfect is when you don't know when it was.
Clear
Obvious
Absolute
Definite
3. Teacher: Excellent! Now, if I wanted to describe my time in Paris in 1999 with the verb "stay", what __would___ I say?
Am
Have
Ought
Would
4. Student: I think it is "I stayed in Paris in 1999". Is that __correct___?
Fine
Accurate
Good
Correct
5. Teacher: Absolutely perfect! Now what _about___ the Present Perfect Continuous?
Does
Concerns
Are
About
6. Student: That's one I never understand _no matter___ hard I try.
Whenever
Whatever
No matter
However
7. Teacher: Well, if you started living in Paris in 1999 and you are still there, you say, "I have been living there ___until__ 1999".
For
Till
Until
Since
8. Student: Yes, I think I understand but there are __too___ many tenses in English.
To
Really
Much
Too
9. Teacher: Right! There is _____ one more that you need to know. Tell me which form you use if you are going to leave Paris and you tell someone about the length of time from your arrival till now.
A little
But
Only
Just
10. Student: Oh, that's easy. I say, "I have lived here for 6 years." I can see from the _____ on your face that I am right.
Eyes
Wrinkle
Lips
Look

1. no

2. yes
3. yes
4. yes
5. yes
6. yes
7. no
8. yes
9. ??
10. ??

1. The correct usage in the sentence is "learn." To get the answer, you need to understand the difference between the Past Simple and the Present Perfect. The Past Simple is used to talk about a specific action or event that happened in the past, while the Present Perfect is used to talk about an action or event that happened at an unspecified time in the past or has a connection to the present.

2. The correct usage in the sentence is "definite." To get the answer, you need to understand the difference between the Past Simple and the Present Perfect. The Past Simple is used for a specific or definite time in the past, while the Present Perfect is used when the time is not known or not important.

3. The correct usage in the sentence is "would." To get the answer, you need to understand how to describe an event in the past using the verb "stay." In this case, you would use the conditional form "would" followed by the past tense of the verb.

4. The correct usage in the sentence is "correct." To get the answer, you need to determine if the student's sentence "I stayed in Paris in 1999" is accurate and grammatically correct.

5. The correct usage in the sentence is "about." To get the answer, you need to understand what is being asked about the Present Perfect Continuous tense.

6. The correct usage in the sentence is "no matter." To get the answer, you need to understand which phrase expresses the student's inability to understand the Present Perfect Continuous tense.

7. The correct usage in the sentence is "until." To get the answer, you need to understand how to describe staying in Paris from 1999 until the present using the correct verb form.

8. The correct usage in the sentence is "too." To get the answer, you need to determine the student's opinion on the number of tenses in English.

9. The correct usage in the sentence is "just." To get the answer, you need to determine which word or phrase is used to describe the length of time from your arrival till now when you are about to leave Paris.

10. The correct usage in the sentence is "look." To get the answer, you need to infer from the teacher's facial expression that the student's response is correct.